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Jeffman Jeffman is offline
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Posts: 214
Join Date: Sep 2011
Car: 335xi
Default 07-20-2019, 11:09 PM

Quote:
Originally Posted by Streetpro
Stock heat exchanger cools oil just after it reaches 200 degs by opening the passage in the water leg - T-stat is controlling the water, there is no T-stat in the oil line...
Otherwise the oil would not circulate if there would be closed valve in line (T-stat)... think about the engine oil cooler/T-stat, it is the same thing...
A proper solution is to dump the whole heat exchanger, run a cooler w T-stat (170-200max) + a vent to keep the temps happy in the city/low speeds
But keeping the stock heat exchanger helps with fluid heat up when itís cold outside. So one could ADD a Tstat and the BMS cooler as I suggested above may be an even better solution.


2008 E90 335xi AT 67K MILES
MHD CUSTOM FLEXFUEL 24 PSI, N20 TMAP, FUEL-IT STG 2 LPFP, cPE CHARGE PIPE, HELIX IC, TIAL Q BOV WHITE SPRING, BMS DCI, BMS T-STAT DELETE, BMS HIGH AND MISHIMOTO LOW OCC, RB PCV, KW-V1 COILOVERS, APEX ARC-8, 235/265 MICHELIN PSS, xHP STAGE 3, SCOOPS, PR IGNITION
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